Home / 615,305.36-921,721.75-306,626.24

Finding the Fourth Proportional to 615,305.36, 921,721.75 and 306,626.24

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Solution

The fourth proportional to 615,305.36, 921,721.75 and 306,626.24 is: 459,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,305.36 : 921,721.75 = 306,626.24 : x
  2. Step 2: Convert to fraction form
    615,305.36/921,721.75 = 306,626.24/x
  3. Step 3: Cross multiply
    615,305.36x = 921,721.75 × 306,626.24
  4. Step 4: Simplify right side
    615,305.36x = 282,624,074,528.72
  5. Step 5: Solve for x
    x = 282,624,074,528.72/615,305.36
  6. Step 6: Final answer
    x = 459,323.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.